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| SkyExtender DualBand –
High-Capacity Mesh Backhaul with AP |
The SkyExtender™ DualBand’s unique integration of a long-range mesh backhaul and industry-standard 802.11 access point gives service providers great flexibility when deploying Wi-Fi access networks. With the extended range of the mesh backhaul, Wi-Fi can be deployed in dense coverage patterns, like blanketing the downtown area of a city, as well as being deployed in targeted locations such as hotzones or residences. This allows multiple distinct and separate Wi-Fi networks to connect to a high-capacity, redundant mesh backhaul to provide an economical and efficient means of deploying Wi-Fi access in outdoor environments.
Another significant benefit of the SkyExtender DualBand is its dual radio architecture, which eliminates the capacity conflict between subscriber access and the network backhaul. The 2.4 GHz radio provides an 802.11b/g access point with high-speed connectivity to Wi-Fi clients (laptops, PDAs, wireless VoIP phones) and the 5 GHz radio leverages SkyPilot’s innovative 8-antenna array to connect to the high-capacity, redundant wireless mesh backhaul and to SkyConnector™ CPE. The separation of access from backhaul enables the use of multiple non-overlapping channels when deploying a “honeycomb” of Wi-Fi cells, thus providing much greater throughput, subscriber density, network capacity, and scalability throughout the Wi-Fi access network. The result is a practical, elegant network architecture for deploying Wi-Fi access services to metropolitan, municipal, and campus networks. |
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| Metropolitan, Municipal, and Campus Wireless Networks |
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Municipal districts, business parks, and residences |
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Public safety, essential services, and telemetry |
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Educational and corporate campuses |
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Public outdoor spaces – shopping malls, recreation areas, and parks |
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| Multi-Service Applications |
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Outdoor Public Access Networks |
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Business or residential broadband Internet access |
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Wireless Voice over IP (wVoIP) |
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Video surveillance and security for public or private networks |
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Provide scalable Wi-Fi capacity and coverage with the SkyExtender DualBand

The SkyExtender DualBand can provide blanket Wi-Fi coverage while taking advantage of a
high-capacity mesh backhaul for improved range, capacity, and fault tolerance. |
| Key Benefits |
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Long-range mesh backhaul enables deployment flexibility for Wi-Fi services |
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Dual radio architecture (one for 802.11b/g subscribers and one for 5 GHz backhaul) overcomes well documented inefficiencies and scalability issues with single-radio, omnidirectional mesh networks |
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5 GHz backhaul combines benefits of mesh networking and point-to-point links |
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Mesh networking: 360° coverage, multiple links with optimized routing and link redundancy, load balancing capabilities |
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Point-to-point links: high-power (28.2 W/44.5 dBm EIRP) focused beams and eight 18 dBi antennas improve penetration and extend range up to 10 miles/16 km |
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High-power (3.2 W/35 dBm EIRP) Wi-Fi access point with 9 dBi antenna provides broad coverage to 802.11b/g subscribers |
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Supports SkyConnector CPE for fixed Internet access services to enterprise and residential subscribers |
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Multi-service network capable of providing end-to-end security and quality of service for VoIP |
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Auto-discovery and rapid provisioning minimize deployment expenses |
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Multiple topology options and network scalability enables growth capabilities |
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OFDM modulation can provide non-line of sight (NLOS) connectivity in multipath environments |
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| Access Point |
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16 SSIDs with VLAN mapping |
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Dynamic channel selection |
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| Traffic Management |
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VLAN support: IEEE 802.1q |
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Traffic Prioritization: IEEE 802.1p, protocol type, IP port, IP ToS field, and IP address list |
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Traffic Filtering: protocol type, IP port, and IP address list |
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Traffic Shaping: upstream and downstream per-user rate control |
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| Topology |
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Mesh, point-to-multipoint, and point-to-point, in any combination and with multiple hops between base station and subscriber nodes |
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| Configuration, Management, & Monitoring |
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NMS integration: SNMPv2c |
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EMS: SkyProvision and SkyControl |
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IP address: DHCP or static |
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Firmware: Multiple versions stored in nonvolatile memory; updated via FTP |
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Provisioning: Manual or automated |
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Confi guration fi le: XML over HTTP |
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SNMP MIBs: MIB-II (RFC 1213); EtherLike (RFC 2665); Bridge (RFC 1493); 802.11; SkyPilot private MIB |
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Remote logging |
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Remote management: CLI via Telnet, SNMPv2c |
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Local management: RS-232 serial console port |
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Wireless |
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5 GHz wireless backhaul
(mesh, point-to-multipoint,
or point-to-point) |
802.11b/g AP
(Wi-Fi subscriber access) |
| Frequency band |
4.940-5.150, 5.150-5.450,
5.450-5.725, or 5.725-5.850 GHz |
2.400-2.497 GHz |
EIRP
(EIRP selected for country-specific regulations) |
44.5 dBm/28.2 W peak,
36 dBm/4 W average,
33 dBm/2 W average,
30 dBm/1 W average, or
36 dBm/4 W peak
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35.0 dBm/3.2 W or
29.0 dBm/800mW |
| Media access |
Time Division Duplex (TDD) |
802.11b/g CSMA/CA |
| Modulation technique |
OFDM |
OFDM (802.11g) &
DSSS (802.11b) |
| Modulation rates |
6 to 54 Mbps |
802.11b: 1 to 11 Mbps
802.11g: 6 to 54 Mbps |
| Throughput |
Up to 20 Mbp |
| Latency |
8-10 ms roundtrip per hop |
| Antennas |
8-antenna array (360° coverage), each antenna 45° horizontal x 6° vertical, 18 dBi |
2 external 9 dBi omnidirectional & antennas with transmit & receive diversity |
| Channel width |
5, 10, or 20 MHz |
20 MHz |
| Channel resolution |
5 MHz frequency control |
5 MHz frequency control |
| Receive sensitivity |
-90 dBm at 6 Mbps modulation |
-98 dBm at 1 Mbps modulation |
| Connectivity |
Connects with SkyExtenders, SkyExtender DualBands, and SkyConnectors |
Connects with 802.11b/g Wi-Fi clients |
| Authentication |
MD5-based certificates |
RADIUS support for multiple servers, 802.1x |
| Encryption |
128-bit AES on all wireless links |
AES, WPA (EAP-TTLS, EAP-PEAP/ MSCHAPv2 with TKIP), MIC, and
dynamic WEP |
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Product Specifications |
| Connectors |
RJ-45: power (Power over Ethernet)
RJ-45: RS-232 serial for local management |
| Mounting |
Tower, utility pole, lampposts, building, or other infrastructure
Outside diameter up to 2.0” |
| Range |
Up to 10 miles/16 km |
| LEDs |
Wireless activity, wireless link |
| Dimensions |
33.0” (83.8 cm) H x 12.2” (31.0 cm) diameter |
| Weight |
15.0 pounds (6.75 kg) |
| Operating temperature |
-40° to 131° F (-40° to 55° C) |
| Wind loading |
Up to 150 mph (240 km/h) |
| Enclosure/humidity |
NEMA-4X |
| Power |
110VAC, 50-60 Hz input; 10 Watts |
| Certifications |
FCC Part 15, FCC 47 CFR Part 15, Class B USA;
compliance with UL safety standards, CE, C-Tick, IC RSS210 Issue 5 |
| EMI and susceptibility |
FCC Part 15.107 and 15.109 |
| Warranty |
One-year limited warranty on hardware;
90-day limited warranty on software |
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For more details, kindly call our friendly Sales Personnel at : (65) 6227 7515
© 2001-2006 David Stephenson Communications Pte Ltd
315 Outram Road, #01-03 Tan Boon Liat Building, Singapore 169074
Tel: (65) 62277515 Fax: (65) 62277512
webmaster@dst.com.sg |
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